Hysteresis model for finite-element analysis of permanent-magnet demagnetization in a large synchronous motor under a fault condition

Author

Rosu, Marius ; Saitz, Július ; Arkkio, Antero

Author_Institution

Ansoft Corp., Pittsburgh, PA, USA

Volume

41

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2118

Lastpage

2123

Abstract

This paper describes a rare-earth-transition metal alloy permanent-magnet (Nd₂Fe₁₄B) hysteretic behavior model within finite-element analysis. The present work analyzes the demagnetization states of permanent magnets during fault conditions in a permanent-magnet synchronous motor and characterizes the ability of the motor to sustain the designed rated outputs after the fault conditions occur.

Keywords

boron alloys; demagnetisation; finite element analysis; iron alloys; machine theory; magnetic hysteresis; neodymium alloys; permanent magnet motors; permanent magnets; synchronous motors; Nd₂Fe₁₄B; Preisach model; demagnetization states; fault condition; finite-element analysis; hysteresis model; large synchronous motor; magnetic field modeling; permanent-magnet demagnetization; permanent-magnet hysteretic behavior model; permanent-magnet synchronous motor; rare-earth-transition metal alloy; Demagnetization; Finite element methods; Magnetic anisotropy; Magnetic fields; Magnetic hysteresis; Magnetic materials; Permanent magnet motors; Permanent magnets; Perpendicular magnetic anisotropy; Synchronous motors; Finite-element methods; Preisach model; magnetic field modeling; permanent magnets; permanent-magnet synchronous motor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.848319

Filename

1438451